US3200004A - Process for the after-treatment of phosphate coatings - Google Patents
Process for the after-treatment of phosphate coatings Download PDFInfo
- Publication number
- US3200004A US3200004A US220047A US22004762A US3200004A US 3200004 A US3200004 A US 3200004A US 220047 A US220047 A US 220047A US 22004762 A US22004762 A US 22004762A US 3200004 A US3200004 A US 3200004A
- Authority
- US
- United States
- Prior art keywords
- treatment
- drying
- phosphonic acid
- water
- solutions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 13
- 229910019142 PO4 Inorganic materials 0.000 title description 2
- 238000000576 coating method Methods 0.000 title description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title description 2
- 239000010452 phosphate Substances 0.000 title description 2
- 238000001035 drying Methods 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 7
- 150000001336 alkenes Chemical class 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 150000001298 alcohols Chemical class 0.000 claims 1
- 239000000243 solution Substances 0.000 description 15
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- -1 alkene phosphonic acids Chemical class 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 101150065749 Churc1 gene Proteins 0.000 description 1
- 241001233242 Lontra Species 0.000 description 1
- CSPJASJUMFUSPF-UHFFFAOYSA-N P(O)(O)=O.C=CC Chemical compound P(O)(O)=O.C=CC CSPJASJUMFUSPF-UHFFFAOYSA-N 0.000 description 1
- 102100038239 Protein Churchill Human genes 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- RZKYDQNMAUSEDZ-UHFFFAOYSA-N prop-2-enylphosphonic acid Chemical compound OP(O)(=O)CC=C RZKYDQNMAUSEDZ-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229940077935 zinc phosphate Drugs 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/167—Phosphorus-containing compounds
- C23F11/1676—Phosphonic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3826—Acyclic unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F30/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
- C08F30/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing phosphorus
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Definitions
- the present invention relates to a process for the aftertreatment of phosphatized metal surfaces with solutions of alkene phosphonic acids.
- the phosphate coatings produced on metal surfaces, especially on iron and steel surfaces, for the purpose of corrosion protection, are porous and only otter sufiicient protection for industrial requirements when followed by an appropriate after-treatment.
- This after-treatment is generally carried out with solutions containing compounds of hexavalent chromium, especially chromic acid. Proposals for improving such after-treatment solutions have already been made.
- the process is characterized in that the phosphatized metal parts are treated with solutions of on alkene phosphonic acid having two or three carbon atoms per molecule, preferably vinyl phosphonic acid, and subsequently dried. Solutions containing about 0.008 to about 2 percent by weight, preferably 0.02 to 0.5 percent by weight, of alkene phosphonic acid, have proved to be particularly suitable.
- solvents for the alkene phosphonic acids there may be used, in addition to water, aliphatic alcohols having 1 to 4 carbon atoms per molecule, preferably isopropanol, or the mixtures thereof with water.
- aliphatic alcohols having 1 to 4 carbon atoms per molecule, preferably isopropanol, or the mixtures thereof with water.
- the phosphatized metal parts can be treated with the solutions according to the invention in the usual manner, for example, by immersion, spraying or flooding.
- the period during which the alkene phosphonic acid solutions may act upon the phosphatized metal parts to be treated is, in most cases, not limited. It is only necessary that the metal parts are satisfactorily wetted with the solutions. It is advisable, however, not to exceed a period of five minutes in the case of concentrated solutions, especially when the solutions contain more than 1 percent by weight of alkene phosphonic acid.
- Example Steel plates (of class St VIII), as characterized by Deutsche Industrie Norm DIN 1623 were coated in a commercially available phosphatizing bath with a well adhering, light-gray layer of zinc-phosphate. Some of these phosphatized plates was immersed at room temperature for seconds into an aqueous solution of 0.5 g. of
- test samples after-treated according to the invention have excellent test values. Plates that have at once been varnished after the phosphatizing process without being subjected to an after-treatment, however, only possess an inferior protection against corrosion; their test values are poor.
- a process for improving the corrosion protection of phosphatized metal surfaces comprises after-treating said phosphatized metal surfaces with a solution containing from about 0.008 percent to about 2 percent by weight of an alkene phosphonic acid having 2 to 3 carbon atoms in at least one solvent selected from the group consisting of water and aliphatic alcohols having 1 to 4 carbon atoms, and then drying the treated surface.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF34821A DE1207760B (de) | 1961-08-31 | 1961-08-31 | Verfahren zum Nachbehandeln von Phosphatschichten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3200004A true US3200004A (en) | 1965-08-10 |
Family
ID=7095730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US220047A Expired - Lifetime US3200004A (en) | 1961-08-31 | 1962-08-28 | Process for the after-treatment of phosphate coatings |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3200004A (da) |
| BE (1) | BE621988A (da) |
| CH (1) | CH404340A (da) |
| DE (1) | DE1207760B (da) |
| GB (1) | GB1003705A (da) |
| LU (1) | LU42245A1 (da) |
| NL (1) | NL282487A (da) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293088A (en) * | 1959-11-18 | 1966-12-20 | Hoechst Ag | Method for producing adherent coatings on clean metal parts |
| US3459600A (en) * | 1966-11-07 | 1969-08-05 | Todco Chem Co Inc | Novel zinc coating composition and method |
| US3850700A (en) * | 1971-10-18 | 1974-11-26 | Amchem Prod | Method and materials for coating metal surfaces |
| US4000012A (en) * | 1973-10-06 | 1976-12-28 | Ciba-Geigy Corporation | Anticorrosive coating of steel |
| US20050268991A1 (en) * | 2004-06-03 | 2005-12-08 | Enthone Inc. | Corrosion resistance enhancement of tin surfaces |
| US20080261025A1 (en) * | 2007-04-18 | 2008-10-23 | Enthone Inc. | Metallic surface enhancement |
| US20080314283A1 (en) * | 2007-06-21 | 2008-12-25 | Enthone Inc. | Corrosion protection of bronzes |
| US20090121192A1 (en) * | 2007-11-08 | 2009-05-14 | Enthone Inc. | Self assembled molecules on immersion silver coatings |
| US20100291303A1 (en) * | 2007-11-21 | 2010-11-18 | Enthone Inc. | Anti-tarnish coatings |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885312A (en) * | 1956-03-05 | 1959-05-05 | Kelite Corp | Metal coating compositions |
| US3012917A (en) * | 1957-03-26 | 1961-12-12 | Pechiney Prod Chimiques Sa | Method of protecting metal surfaces |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1174045A (fr) * | 1957-03-26 | 1959-03-05 | Pechiney | Protection des métaux |
-
0
- BE BE621988D patent/BE621988A/xx unknown
- NL NL282487D patent/NL282487A/xx unknown
-
1961
- 1961-08-31 DE DEF34821A patent/DE1207760B/de active Pending
-
1962
- 1962-08-21 LU LU42245D patent/LU42245A1/xx unknown
- 1962-08-28 GB GB33052/62A patent/GB1003705A/en not_active Expired
- 1962-08-28 US US220047A patent/US3200004A/en not_active Expired - Lifetime
- 1962-08-29 CH CH1027462A patent/CH404340A/de unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2885312A (en) * | 1956-03-05 | 1959-05-05 | Kelite Corp | Metal coating compositions |
| US3012917A (en) * | 1957-03-26 | 1961-12-12 | Pechiney Prod Chimiques Sa | Method of protecting metal surfaces |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293088A (en) * | 1959-11-18 | 1966-12-20 | Hoechst Ag | Method for producing adherent coatings on clean metal parts |
| US3459600A (en) * | 1966-11-07 | 1969-08-05 | Todco Chem Co Inc | Novel zinc coating composition and method |
| US3850700A (en) * | 1971-10-18 | 1974-11-26 | Amchem Prod | Method and materials for coating metal surfaces |
| US4000012A (en) * | 1973-10-06 | 1976-12-28 | Ciba-Geigy Corporation | Anticorrosive coating of steel |
| US20050268991A1 (en) * | 2004-06-03 | 2005-12-08 | Enthone Inc. | Corrosion resistance enhancement of tin surfaces |
| WO2005121405A1 (en) * | 2004-06-03 | 2005-12-22 | Enthone Inc. | Corrosion resistance enhancement of tin surfaces |
| CN101001980B (zh) * | 2004-06-03 | 2011-06-15 | 恩索恩公司 | 锡表面的耐腐蚀性改进 |
| US7883738B2 (en) | 2007-04-18 | 2011-02-08 | Enthone Inc. | Metallic surface enhancement |
| US20100151263A1 (en) * | 2007-04-18 | 2010-06-17 | Enthone Inc. | Metallic surface enhancement |
| US20080261025A1 (en) * | 2007-04-18 | 2008-10-23 | Enthone Inc. | Metallic surface enhancement |
| US8741390B2 (en) | 2007-04-18 | 2014-06-03 | Enthone Inc. | Metallic surface enhancement |
| US20100319572A1 (en) * | 2007-06-21 | 2010-12-23 | Enthone Inc. | Corrosion protection of bronzes |
| US20080314283A1 (en) * | 2007-06-21 | 2008-12-25 | Enthone Inc. | Corrosion protection of bronzes |
| US10017863B2 (en) | 2007-06-21 | 2018-07-10 | Joseph A. Abys | Corrosion protection of bronzes |
| US20090121192A1 (en) * | 2007-11-08 | 2009-05-14 | Enthone Inc. | Self assembled molecules on immersion silver coatings |
| US8216645B2 (en) | 2007-11-08 | 2012-07-10 | Enthone Inc. | Self assembled molecules on immersion silver coatings |
| US8323741B2 (en) | 2007-11-08 | 2012-12-04 | Abys Joseph A | Self assembled molecules on immersion silver coatings |
| US20100291303A1 (en) * | 2007-11-21 | 2010-11-18 | Enthone Inc. | Anti-tarnish coatings |
| US7972655B2 (en) | 2007-11-21 | 2011-07-05 | Enthone Inc. | Anti-tarnish coatings |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1207760B (de) | 1965-12-23 |
| NL282487A (da) | |
| BE621988A (da) | |
| GB1003705A (en) | 1965-09-08 |
| CH404340A (de) | 1965-12-15 |
| LU42245A1 (da) | 1962-10-22 |
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